The frequency with how often you make contact has to do with where you are in a job hunt. "If you're in the throes of a job search, you might want to touch base once a week. But if you're in career exploration mode, then you could touch base once a month. You want to find a good balance ... there's a fine line between following up and being a stalker."
"If you treat people with care you will develop good, trusting, long-lasting relationships," Kay adds. "And then even if they can't help you, they'll probably refer you to someone."